What is the density of an object with a volume of 30ml and a mass of 90 grams
1 answer:
Answer:
<h2>Density = 3 g/mL</h2>Explanation:
Density of a substance can be found by using the formula
<h3>From the question
mass = 90 g
volume = 30 mL
Substitute the values into the above formula and solve for the Density
That's
<h3>We have the final answer as
<h3>Density = 3 g/mL</h3>Hope this helps you
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Answer:- atoms of Cu are equals to 4.45 moles.
Solution:- It is a atoms to moles unit conversion for which we divide the given number of atoms by Avogadro number.
We have been given with atoms and asked to convert them to moles.
The set up for this unit conversion problem would be as:
= 4.45 moles
So, there would be 4.45 moles of Cu in atoms of Cu.